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Science 9 Quarter 1- LIVING THINGS Module 1: Respiratory and Circulatory System

This module was designed and written with you in mind. It is here to help you master Respiratory and Circulatory System. The scope of this module permits it to be used in many different learning situations. The language used recognizes the diverse vocabulary level of students. The lessons are arranged to follow the standard sequence of the course, but the order in which you read them can be changed to correspond with the textbook you are now using.

The module focuses on achieving this learning competency:

  • Explain how the respiratory and circulatory systems work together to transport nutrients, gases, and other molecules to and from the different parts of the body (S9LT-Ia-b-26)

After going through this module, you are expected to:

1. Identify the key parts of the breathing system;

2. Describe the function of each part of the breathing system;

3. Explain how the lungs work;

4. Describe how the movement of the diaphragm helps the air go in and out of the lungs;

5. Identify the components of the circulatory system;

6. Explain the different types of circulation;

7. Explain how blood is pumped by the heart; and,

8. Explain the mechanism of how the respiratory and circulatory systems work together.


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